package com.xxxx.springsecuritydemo.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;

/***
 * 自定义用户登陆逻辑类
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private PasswordEncoder pw;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        System.out.println("进来的loadUserByUsername");
        // 1.查询数据判断用户名是否存在, 如果不存在抛出UsernameNotFoundException异常
        if (!"admin".equals(username)) {
            throw new UsernameNotFoundException("用户名不存在!");
        }
        // 2.把查询出来的密码(注册时已经进行加密了)进行解析, 或者直接把密码放入构造方法中
        String password = pw.encode("123");
        return new User(username, password,
                // 添加权限
                AuthorityUtils.commaSeparatedStringToAuthorityList("admin,normal,ROLE_abc,/main.html,/insert,/delete")
        );
    }
}
